William h



(No Model.)

W. 'H. DAYTON. SWAGING MACHINE.

No. 540,905. 4 Paten'td June 11,1895.

llllllllifi N N w R W w b UNrrEn STATES PATENT @FHQE.

WVILLIAM H. DAYTON, OF TORRINGTON, CONNECTICUT, ASSIGNOR TO THE 'EXCELSIOR NEEDLE COMPANY, OF SAME PLACE.

SWAGlNG -MACHINE.

SPECIFICATION forming part of Letters Patent No. 540,905, dated June 11, 1895.

Application filed November 12, 1894. 7 Serial No. 528,524. (No model.) I

To all whom it may concern:

Be it known that 1, WILLIAM H. DAYTON, a citizen of the United States, residing at Torrington, in the county of Litchfield and State of Connecticut, have invented an Improvement in Swaging-lllachines, of which the following is a specification.

In swaging articles of wire, such as bicycle and tricycle spokes, it is advantageous to arrange the dies and their actuating devices in such a manner that the wire may be left of its full size or nearly so at the ends of the spoke for the reception of the screw threads and reduced to the desired size in the body of the spoke, and with this object in view, machines have heretoforebeen made with wedges or inclines that could be moved during the swaging operation to cause the dies to approach nearer togetheror to act when farther apart. A device of this character is represented in Letters Patent No. 492,576,granted to me February 28, 1893, and No. 47,5l8, granted May 10, 1892.

In Letters Patent No. $11,558, granted to me May 11,1886, a rotating shaft and dies within a mortise crossing the end of the shaft are shown in connection with swinging toggle blocks, either one of which can be adjusted to compensate wear. I

The object of the present-invention is to provide a peculiar mechanism for adjusting the blocks simultaneously to cause the dies to act when nearer together or farther apart, and with this object in view I combine with the revolving shaft and dies, blocks that are within a head and radial or nearly so to the revolving'shaft, and cams for adjusting and holding the blocks, and gear wheels for acting simultaneously-upon all the cains and partiallyrotating the same to bring the blocks nearer to. or farther from the axis of rotation and thereby regulate the opening between the dies.

In the drawings, Figure l is an elevation of the apparatus with the capplate removed. Fig. 2 is a vertical section, partially in elevation, through the head and revolving shaft.

The shaft A is supported in a suitable head B and revolved by a pulley O and a band or other suitable device, and the shaft A is holthese dies D D are held in position bya cap F screwed to the end of the shaft and having adjusting screws 2 entering recesses in the 'dies to limit the outward movement of the dies as they open previous to the closing by the mechanism hereinafter described.

The shafts E carry upon their outer ends the cams G, and the shafts themselves pass through the head B so as to be supported by the same, and around the circular central portion B of the head there is a ring-shaped-gear H which gears into the pinions I upon the shafts E, and this ringshaped gear H may be partially rotated one way or the other byany suitable power.

I have indicated in Fig. 1 at K a worm pinion, and at L a shaft and crank bywhich the worm pinion may be rotatedto move the ringshaped gear H and pinions I and partially rotate the cams G either in one direction or the other. It is generally advantageous to make these cams G almost circular so that the adjustment may be gradual, and with this object in view the contour of the cam may be a single scroll, the distance between the inner and outer ends of the scroll being the limit of movement which in many swaging machines need not be over one-sixteenth of an inch. The drawings represent the pitch of the scroll asgreater for indicating the general shape more clearly.

I have represented a collar M screwed upon the circular central part B of the head B to hold the ringshaped gear H in position, and

it will now be apparent that by turning the shaft and crank L, all of the pinions I and cams G will be simultaneously partially revolved to adjust the action of the parts between the cams and the dies.

It is advantageous to provide mortises or notches in a ring N upon the face of'the head B, and into such notches the blocks 0 and O are received and stand radially or nearly so. The blocks 0 are represented as having recesses in their inner ends for the reception of the rolls 3, and the surfaces of these rolls act against the outer ends of the dies D D to close the same as the parts are rotated.

The blocks 0 are represented as shorter and recessed in their inner faces to receive the rounding ends of the toggle blocks P which are held in a normal position, as indicated by the dotted lines Fig. 1 by the springs Q, and they swing by contact with their inner ends of the outer ends of the dies D D, and in so doing the dies are forced toward each other with considerable power to swage the article that may be between them; and it is advantageous to place a face ring R around the outer end of the head B to hold the blocks 0 O in position'but to allow them to be adjusted freely by the action of the cams.

In some characters of swaging machines it is advantageous to make use of blocks 0 with the rolls 3 all around the dies, and in other instances to em ploy toggle blocks P all around the dies, but in other machines both. characters of blocks may be used, as shown in the drawings. I have only represented four cams and their blocks, but the number may beincreased as desired.

I claim as my invention- 1. The combination with a revolving shaft having a mortise across the end and swaging dies within such mortise, of a supporting head, a circular range of shafts and cams and 1 blocks intermediate between the cams and l the dies, and gearing for partially rotating the shafts and earns simultaneously and varying the action of the blocks in closing the dies to a greater or less-extent, substantially as set forth.

2. The combination with a revolving shaft and swaging dies carried by such shaft, of a head sustaining the shaft, cams and their shafts supported by the head, pinions upon the shafts of the cams, and a gear wheel sustained by the head, mechanism for partially rotating the gear wheel, the pinions and the cams, for varying their action, and blocks between the dies of the revolving shaft and the greater or less extent according to the position of the cams, substantially as set forth.

3. The combination with a revolving shaft and swaging dies carried by such shaft, of a head sustaining the shaft, cams and their the-shafts of the cams, and agear wheel sustained by the head, a worm pinion, shaft and crank for partially rotating the gear wheel, the pinions and the cams, for varying their 1 action, and blocks between the dies of the re- 3 volving shaft and the cams, whereby the dies 1 will be closed to a greater or less extent according to the position of the cams, substair l tially as set forth. Signed by me this 7th day of September, i 1894.

W. ll. DAYTON.

Witnesses:

HERBERT L. THOMAS,

J. HOWARD AVERY.

shafts supported by the head, pinions upon cams, whereby the dies will be closed to a, 

